Vinyl air-drying wrinkle composition and method of applying same



Patented Jan. 17, 1950 2,494,597

UNITED STATES PATENT OFFICE VINYL AIR-DRYING WRINKLE COMPOSI- TION AND METHOD OF APPLYING SAME William A. Waldie, Dayton, Ohio, assignor to New Wrinkle, Inc., Dayton, Ohio, a corporation of Delaware No Drawing. Application February 28, 1947,

Serial No. 731,718 I Claims. (Cl. 117-41) This invention deals with a wrinkle coating tion without departing from the scope of the incomposition and a method of coating articles vention. ther ith, It will also be understood that while there have It is an object of this invention to prepare been described herein certain specific embodicoating compositions which yield a wrinkle-tex- 5 ments of the invention, it is not intended thereby tured film from solutions of non-wrinkling resins. to have it limited to or circumscribed by the spe- It is another object of this invention to prepare cific details given in view of the fact that this inwrinkle coating compositions without the use of vention is susceptible to various modifications and any heating or cooking steps. changes which come within the spirit of this dis- It is still another object of this invention to 1 closure and the scope of the appended claims.

prepare wrinkle coating compositions which yield I claim:

a film of great homogeneity. 1. A wrinkle coating composition consisting of These and other objects are accomplished by a mixture of 4 lbs. of polyvinyl butyral,-4 gals. of mixing polyvinyl butyral, butanol and water. butanol and 1 gal. of water. This type of mixture, when applied to a surface 2. In a method of coating articles with a wrinand dried, yields a texture of very uniform wrinkle-textured film, the steps of preparing a mixkl formation, ture consisting of from 4 lbs. of polyvinyl butyral,

While polyvinyl butyral dissolved in butanol 4 gals. of butanol and 1 gal. of water; allowing yields an entirely smooth surface upon drying, the air to escape from said mixture; applying said addition of water causes formation of wrinkles. 2 mixture to the surface to be coated; and drying This result was wholly unexpected and surprising. said "coating whereby a wrinkle-textured film is In the following, one example is given of a obtained.

composition according to my invention which 3. In a method of coating articles with a wrinyielded especially satisfactory results. kle-textured film, the steps of preparing a mixture consisting of from 4 lbs. of polyvinyl butyral,

Example 4 gals. of butanol and 1 gal. of water; allowing air 4 lbs. polyvinyl butyral to escape from said mixture; applying said mix- 4 gals t l ture to the surface to be coated; and drying said 1 gaL water coating with infrared heat for from 1 to 5 minutes.

4. In a method of coating articles with a wrin- The mixture is prepared by blending the ingredikle textured film t steps f preparing a ents at room temperature. It is advisable to let t consjstin offrom f 1 the mixture stand for a short while until air bub- 4 gals, of butanol and gaL gf g gi gg g bles which are usually occluded have escaped. air to escape from said mixture; applying said Thereafter, the mixture is ready for application mixture t t surfa e t be t and drying to the articles "70 be coated which may be done by said coating at room temperature for approxiy methfld C tO y in the art s as D -Y- mately 45 minutes and thereafter to 200-212 F. ing, immersing, knifing and the like. The solvent fo about 1 hour,

is then removed from the coating by baking or air 5. In a method of coating articles with a wrinying- Baking m y be carried out by means of kle-textured film, the steps of preparing a mixture 9. gas heated or electrical oven or by infrared light. consisting of from 4 lbs, of olyvinyl butyral, 4 If infrared h at 18 app h t time 0 from gals. of butanol and 1 gal. of water; allowing air 1 t0 5 minutes is usually sufilcient. It is obvious to escape from said mixture; applying said mixthat also a combination of various kinds of heatt t th surface to be coated; and air drying s may be us d; thus. for e amp e, air dryin for said coating for approximately 3 hours.

45 minutes with subsequent oven drying at 200 to WILLIAM A. WALDIE, 212 F. for approximately hour yielded also films of great uniformity and satisfactory hard- REFERENCES CITED ness. However, air drying for approximately 3 h f u i f hours is about the simplest and cheapest method, o f m zg; erences are of record in the and the same satisfactory result, namely a film of sufficient hardness and uniformity of the wrinkles UNITED STATES PATENTS is obtained thereby. Number Name Date It will be understood that conventional addi- 1,746,665 Matheson etal Feb. 11, 1930 tional materials such as plasticilers. Pigments, 1,971,951 Skin-ow et al. Aug. 28, 1984 dyes or the like may be added to the new oomposi- 2,821,939 Quinn June 19, 1948 

2. IN A METHOD OF COATING ARTICLES WITH A WRINKLE-TEXTURED FILM, THE STEPS OF PREPARING A MIXTURE CONSISTING OF FROM 4 LBS. OF POLYVINYL BUTYRAL, 4 GALS. OF BUTANOL AND 1 GAL. OF WATER; ALLOWING AIR TO ESCAPE FROM SAID MIXTURE; APPLYING SAID MIXTURE TO THE SURFACE TO BE COATED; AND DRYING SAID COAT WHEREBY A WRINKLE-TEXTURED FILM IS OBTAINED. 